theory 4 is the beleife that stonehenge was made to be used as a calander it think this theory is possible but it isnt the most realistic. it is still an active theory although scientists have not yet found any known ways of constructing a way to get any type date or time out of the shape size or ordering of the stones, the only realistic way they could think of to explain how it could be used to tell date or time was if it was a lunar calander for example scientists though it was supposed to be looked at from a certain angle somehow telling date or time although that was quickly dismissed.stonehenge-mir-2.jpg it was thought to be originaly make by the celts but it was made before they inhabbited the area.